Russell E. Madsen* is president of the Williamsburg Group, LLC, 18907 Lindenhouse Rd., Gaithersburg, MD 20879, tel. 301.938.4266, madsen@thewillamsburggroup.com
Maik W. Jornitz is group vice-president of global product management, bioprocess of Sartorius Biotech Inc. Theodore H. Meltzer is a consultant for Capitola Consulting Company. Madsen and Meltzer are also members of Pharmaceutical Technology's Editorial Advisory Board.
*To whom all correspondence should be addressed.
Keywords: filtration, integrity testing. sterilization
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